Tamiya's tungsten thrust bearing balls (part number 42193) are produced to improve the durability of TRF diff thrust surfaces. Built from tungsten, they resist wear better than ordinary steel balls, which helps the thrust bearing keep operating smoothly over many running sessions.
The balls are compatible with a variety of TRF chassis models, namely TRF416, TRF416WE, TRF416X, TRF417, TRF201, TRF511, and TRF502X. Whether you are dialing in handling for a race or servicing a regular racer, these parts fit common TRF setups.
Tungsten provides superior hardness and wear resistance, so bearings require replacement less often. That reduces downtime and keeps your car consistent lap after lap.
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